Can I use ÔÇ£RAIN XÔÇØ on my BMWRT windshield and (or) my HJC helmet face shield?

The instructions on the bottle say, ÔÇ£Do not use on plastic unless pre-approved by the manufacture of the plastic to be treatedÔÇØ

In South Georgia, riding in the rain is sort of fun, (If like me, you try to see things the way a kid does).

But if the rain is hard enough to ÔÇ£drown a frogÔÇØ then of course it becomes very difficult to see where youÔÇÖre going.

I thought about using ÔÇ£Rain XÔÇØ but I donÔÇÖt want to ruin the windshield.

What are your thoughts?